Osteology of the Skull Flashcards Preview

Gross II > Osteology of the Skull > Flashcards

Flashcards in Osteology of the Skull Deck (32):
1

What are the 8 bones of the neural cranium?

frontal
parietal-2
temporal-2
occipital
sphenoid
ethmoid

2

what are the 14 bones of the facial skeleton

maxillae-2
zygomatic-2
palatine-2
inferior concha-2
nasal-2
lacrimal-2
vomer
madible

3

what are the six bones of the middle ear

malleus-2
incus-2
stapes-2

4

what type of joint are the majority of the skull bones

fibrous ( synarthrosis) sutural joints

5

Name two synovial joints of the skull

temporo-mandibular jt
ear ossicles

6

what bones are connected by the coronal suture

frontal and parietal

7

what bones are connected by the sagittal sutures

left and right parietals

8

what bones are connected by the lambdoidal sutures

occiput and parietal

9

what type of suture are the coronal, sagittal and lambdoidal sutures classified as

serrated sutures

10

what bones are connected by the squamosal suture

squamosal portion of temporal and parietal

11

what is the vertex

top most portion of the head

12

what is the bregma

junction b/t coronal and sagittal sutures

13

what is lambda

junction b/t sagittal and lambdoidal sutures

14

what are the parietal eminences

ridge on side of head

15

what are the superciliary arches

ridge along superior border of orbit

16

what is the glabella

prominence along the bridge of nose

17

what is the capacity of the cranial vault

1500cc

18

what are the borders of the anterior cranial fossa

orbital plates of the frontal bone
cribriform plate of the ethmoid bone
lesser wings of the body of the sphenoid
anterior clinoid process

19

what two landmarks are found in the cribriform plate

cribriform foramina- where CN1 passes through
crista galli- crest of bone on midline

20

what are the borders of the middle cranial fossa

greater wings of the sphenoid
body of the sphenoid
including: sella turcica
hypophyseal fossa
Temporal bones
including: squamous portion
petrous portion

21

what passes through the optic canal

CN2 -optic n
opthalmic artery

22

what passes through the superior orbital fissure

CN3- occulomotor
CN4- trochlear
CN6- abducents
V1 Branch(CN5)- Opthalmic

23

what passes through the foramen rotundum

V2 branch(CN5)- maxillary

24

what passes through the foramen ovale

V3 Branch(CN5)- mandibular n

25

what passes through the foramen spinosum

middle meningeal artery (entering the cranial cavity)

26

What is unique about the foramen lacerum

It is closed by fibrocartilage
The carotid canal opens into this cavity
Therefore the the carotid artery passes ACROSS the foramen lacerum

27

What are the borders of the posterior cranial fossa

occipital bone
petrous portion of the temporal bone
body of the sphenoid
including:
dorsum sella
posterior clinoid process

28

What is contained within the internal auditory meatus

CN7-Facial
CN8- vestibulocochlear
internal auditory artery

29

What is contained within the jugular foramen

CN9-glossopharyngeal
CN10- Vagus
CN11- spinal accessory
internal jugular vein

30

what is contained in the foramen magnum

spinal chord to brainstem transition
vertebral arteries
spinal root of CN11-spinal accessory

31

What is contained in the hypoglossal canal

CN12- Hypoglossal

32

What is contained in the condylar canal

(variable)
Emissary veins